NASA Unidentified Anomalous Phenomena Independent Study Team

NASA commissioned the team in mid-2022, outside its normal program structure, as a subcommittee of the Earth Science Advisory Committee.
Groupe d’Études et d’Informations sur les Phénomènes Aérospatiaux Non identifiés

Since 2007 GEIPAN has posted anonymized case files online. Reports come through its site or through police and gendarmerie statements, then go through technical analysis and a published classification
Advanced Aerospace Threat Identification Program

AATIP was a small, unpublicized U.S. government effort housed at the Defense Intelligence Agency. Then–Senate Majority Leader Harry Reid arranged roughly $22 million over five years
Unidentified Aerial Phenomenon Task Force,

The UAP Task Force’s mission was: Detect, analyze, and catalog unidentified aerial phenomena that could pose a threat to U.S. national security, and improve the Department of Defense’s understanding of the nature and origins of UAP incursions into training ranges and designated airspace
All-domain Anomaly Resolution Office

AARO resolves reported UAP reports and issues annual UAP reports to Congress. Also delivered a March 2024 Historical Record Report covering government involvement since 1945